摘要
对病态的混合系数线性模型Z(t)=[X(t)]′α+[Y(t)]′β提出了一类新的估计h-K型估计.讨论了此种估计的相关性质,证明了利用Stein式压缩技术可以改进岭估计(在均方误差意义下);同时给出了参数的最优值满足的条件,分别给出了它的上、下界,证明了h-K型估计的可容许性.
The paper first proposes the h-K type estimators of the coefficients in the mixed-effect linear model Z(t)=[X(t)]′α+[Y(t)]′β in the ill condition. The ridge estimators are improved by applying the idea of James-Stein regression under the mean square error criterion, then the optimal condition for the parameter is given, and each of its upper bound and lower bound is examined respectively. The h-K type estimators are proved to be admissible.
出处
《杭州师范大学学报(自然科学版)》
CAS
2016年第3期316-320,共5页
Journal of Hangzhou Normal University(Natural Science Edition)
基金
安徽省高校自然科学研究重点项目(KJ2016A246)
安徽省大学生创新创业训练计划项目(201513616009)